‖n.; pl. Cercarle /plu> [ NL., fr. Gr. ke`rkos tail. ] (Zool.) The larval form of a trematode worm having the shape of a tadpole, with its body terminated by a tail-like appendage. [ 1913 Webster ]
a. (Zool.) Of, like, or pertaining to, the Cercariæ. -- n. One of the Cercariæ. [ 1913 Webster ]